Lock switch



May 19, 1931.

H. E. NORVIEL LOCK SWITCH Filed Jan. 28,

PatentedMey 1 9 e i ofignition coil andllockrswitch.

Oneobj'ectbf the presentfinvention isto: proyide an improved "key operatedi deyice l for loperatingithe switch and for 'fprevent-' ing the unauthorized openingof the switch caseQ'Whflethe present}invention-is em 1 bodied in a combined switch and coilfstri 'eture which is the subject of the copending 1 application referredto fit will beapparentf fiiolnthe followingdescription that the preseiit invention is susceptible or embodiment 7 i1 is not present. 5 e e e n the drawjn i i it 1' is a" fragmentaryflsectional View of sanitary coilj andf-switch structure constructedin accordancewiththe present in n ng i assembled from the switohrcase.

and operation of the lock switch embodyingj i the present invention; this switch cangbe of which is shown-11in longitudinal \secti artly in section, 5 ajrrowA of Fig 1, showing the coil and switch unit iemovedv from (its cmounting bracket, the :sectionj through the switch easel beingrtaken jonflthe Fig; 5 a is an endivielw lonthe linfe Fig. 1,915 the ignition coil after being disv' tary View on the a part of the s itch f casefl is provided apart of an ignition-coil housing;a fragment endicovers i one r al, n 2501404; e

of which is 22. i The 5 liousing 2l0 encloses a core33 surrounded; by a secondary;

W nd g 3 ldfja rimar iwinding; 28;? One end of the 7 core 33, which: is fo m d 5 preferably a bundle of relativelysmall I 55 '1 iron wires s received by ay recess 355111 a non-conducting block 36 which is main-f" tained in the position shownbetween the core 33 and the end coyer 22fafter the coil has beenassembled.

Th ignition @011 is combinedin a Tunitar y: structureiwith a switch having a-case 40,

forwhich the ignition coil provides mover,

The coil is attached to thefcaseeO'by means including a ring 41 permanently attached tea the liousing member andi'having a flange; y a

42 which is attached by rivets 43 to a fiangei 4% ot the switch case 40. The cylindermember 45- of a pin tumbler lock' is provided a with arms 46 whiehyare attachedbyscrews 47 to the switch case which is provided cylinder 45. The f 7 cylinder supports J a rotatable key plug-48 for receiving aproper key 49 by which the key plug 48-may=be turned. A plate 50 is attached by screws 51* to anon-conducting plate 53 provided with a metallic insert 547 which is attached to the 3 plate 53 preferably by moldingt he material or depressions 55 for'receiving the some "whatfspheriealprojections 56 formed on the free ends of leaf spring conductors 57 The with anjaperture "suitable for receiving the} conductors "57 are receiyed grooves-'58 provided in a somewhat ioblong shaped 1 boss 59 formed integraliwith the insulating body:

; 1 7 a Q36 and projecting,throughin @WSimilaIly Wh'le not essential to the 'construetionY shaped-opening inthe coil housing member QQL The" contact plates57 arewsecured by p e e e e ,hollow riyetsg:GGthrough which connections used to advantage 1 in a structurerin which.

areli made between .Ithe contacts 57 and the necessary in the last'or outside layer of turns outside ayes which is neare s twtli insulating body B'Gjis ants; it to p'royide of the: rimary c'oiluzs; Theygturn (if-the of the switch contacts 57.

two wires 61 and 62 which connect respectively the outside layer of the vprimary -coi1f 28 and the preceding inside layer with one If the movable contaot=5 l is turned Lit will be." engaged by -the cOntactsQZ, the

' Pherie .'-e s 5 n ppine t holes "of" the contact i 54; Thisijioperation" will connect a current source with the 1 ignition v 0011 primary twinding 28 and W1i3lll3ll 'igni} tion timer not sh0wn,.so that when atn'ner is; operated by an; internal{combustion engine sparkingimpulses willbe generated by high voltage. in the secondary 001129, and theseimpulses will be distributedgtozth arc" plugspf, the; engine by suitable distributing apparatus;notshownzg: Turning the key 249 1 the'contacts 57Ks'othatfthe ignitionapparm tus T will be rendered inoperative and-the en,- Y gine will stop; When, the key is in thislatv i ter; .positionlgit :may be removed: from the i operated without thezproper keyisf 1 1 .l'llnorder to prevent'gdi'sassembling of the s ignition, coil from-the switch case 450 while fan ' lock..' Hence the ignition switch cannot be theignition{switchv is locked in,olf"";posi"-' tion, meansfare provided for rendering the rivetsj43inaocessible to such toolsas achisel' byg whioh the; headsof the rivets could-be into a circulai; .flangei8'0jc "The flange 1800 a is permanently attached to the instrument or 'dashiboard Tof1the vehifclev: 11f a thins "a usedythe flange 800 may besec'ure'd by screws 84,130 the Wooden backing183,=--and the heads V 5011 of the screws 84; willbe covered by thenetal l removed; 1 This means includes a mounting bracketBO tdwhicltthe coil and switch assembly is attached byscrews181 which pass 7 through plainj'holes in thefla'nges 42 and/l4- and through tapped holes in the bracketSO. v The bracket comprises i a .,oentral disc" por tion, 80d which-merges into (an annulus wb of channel shaped" cross section andfthen metal dash is used} alone withoufl wooden backingyasjindicated at '82 inFig. 1, .the

flange 80a isfsecured to the. dash byiweldin'g" or -brazingi-- But if" a; wooden backing 831is;

dash 82.1 a

* The wall formingl (a the chan nel shapedsection-SO6 of bracket -80is pro vided with a number of: holes: 86' for receiv in'gwthe heads of the rivets 43. Altho1 gh" the' screws'81 may be removed, theooil and switchassemblycannot hereniovedfroin the braeket 80fwhile' the: ignitiongswitchfisf locked rofi osition. This isaccoinplished;

by lock; controlled device'gincluding studs 90 1; with the studs 90 inthe positionshown in Figs. 3 and l will be held in looking position \(l-ue; to engage fame-507, 1 t a prevent separation of the parts 40 and i When the switch is looked, the pins 9Q will 90 fromthe. position shown inlFigs. 13A and 16,

ment'thereof with lugs"95.Whichare'prm j q 1 vided by the non-conducting bodyv53.1;VVhen -the-switchlis turned to on position, the

lugs'95 will' be moved out ofengagementi so thatthe" springs 91 will removed from the bracket. fIn orderto as .sist in locatingthe contact 54 in pit and i s V ion positions, the'plate;53;is-provided'with notches96-and 97 fo'rreceiving the end 98 y 1 of a leaf spring 99 which is attached-lo the 'tolthepositionshown'inlFigsfllandV3 will' cause the contact 35th)? beidisengagedl from, i i

contacts 57. Thelock' andnthe" more lex;

pensive parts ofltheswitch remain a'ssem bled with the switch case,

bers together; cooperating switch contacts jWhile theform of embodiment of the present invention as herein disclosed,- cons:v stitutes a preferred formyit is to heunder-j stood; thatother forms might be adopted; all coming within, the scope: of the claims Wl'llCh*IEO11OW.' 5 p '1007 'What is claimedis as follows;:;

V 1; An electric switchycomprising in com -b1nation, a. swltch case having separable members; ,meansfor' attaching the. mein-j a.

v V V within the; case IIlGLIlSf for; rendering the I attaching means inaccessible; for removal;

and key operated 1 devices "for controlling the engagement andidisengagementof the cone f 7 y means;-wh1ch; ren;ders the-attaching means;

tacts and for locking: thejswitchcase to the 1 inaccessible.

An t i s t h such tsidetiialibi tact-s connected respectively, With'the' switch case members, the" contacts beingiseparable toiperrnit separation of the case 3Q An -electric; switch such as" defined by?" clair'nql, in Whichthe switch"includesialrelzu" tively stationary contactfconnected withione of the case members and movable b l LQfiY Q 'coniiev ctedf with tl i other case me 8; her, and 'in' syvhich the "locking means co n-" prises key' operated ;,devi'ces, enclosed by r-the claims 1, in which theswitchgincludes concase for operating'the movable contactand" forpreventing separation ofthe switchfcasel V members"; from the means which renders in;

accessible;kthevswitch case jattaching "means .y 715 II be released'to move the studs ;90 inwardly -and disengage them" from thebracket BO.

-Th the w hand c il-Lafi se bly -mall)?= s a Qof the switch whichare discarded arethea p d, device. a

when the movable contactisturned toolf position. i {I r V v i 4. An electric. switch according to claim a 1, in which a mountingbracketrenders the aattaching means inaccessible, the i switch case being locked to bracket by the key f5. Anelectric switch according toclaim,

1', in "which the switch case members are r j I attachedby headed rivets, and the means i which is lockedin operativeuposition b the controlledactuator for rendering the case separation thereof upon proper manipulation of the controlled devices.

In testimonywhereof I hereunto aflix my signature.

l p, HARRY E. NORVIEL.

key operated devicerenders the l es. of a V the rivets inaccessible;

6. ,An electricswitch and a supporttherefor, comprising a bracket'provid ng a cupcase to the bracket.

contacts; an case fromthe bracket.

or preventing "removal of the u 7 An electricswitch, comprising in com-f bination, a switch case having separable" members means for; attaching the memberstogether; cooperating switch contacts within the case amounting bracket for rena dering the. attaching means inaccessible for removal; and key operated devices for conjtrolling the engagement and disengagement 8. The combination with an electric switch, of amounting bracket providing a receptacle, a switch case receivable by said of the contacts and for locking the switch receptacle, cooperating contacts within the case, a lockcontrolled contact actuator 1 within the case, and having a key barrel extending through the case and bracket, and a l devices operated: by said lock controlled" at:- tuator for rendering, the case and bracket f inseparable, yet permitting the separation thereof upon properrmanipu l ti f controlled devices. r r r 9. An electric switchanda support there- A 1 for, comprising a bracket providlngacupshaped recess, a switch case ada tedto' be received by the recess of the brac et, a lock f i mounted within the case and having a key receiving member extendin throu h align-j j i in. the

eds apertures in theiibrac etlan 7 switch. case, and-devices operated by the I r lock for controlling said switch and for preventing w bracket. i i

10. The combination an electric switch, of a mounting bracketprovidinga receptacle, 9. switch casereceivable by said receptacle, a lock controlled actuator havin' r a ke barrel extending through the case an; 1 i brac et,.anddevices operatedby saidlock e removal of; the flcase from the y and bracket inseparable, yet permitting the 

